表面附聚薄壳型单分散高效阳离子色谱柱填料的研制及其色谱性能  

Preparation of Monodispersed Agglomerated Pellicular Cation Exchange Resins and Its Chromatographic Properties

作　　者：宁君[1] 邢颖[1] 侯小平[1] 孔繁祚[1] 牟世芬[1] 

机构地区：[1]中国科学院生态环境研究中心,北京100085

出　　处：《色谱》2002年第6期530-533,共4页Chinese Journal of Chromatography

基　　金：国家自然科学基金资助项目(59973026和29905004).

摘　　要：报道了一种新的表面附聚薄壳型阳离子色谱柱填料的简易制备方法。首次合成了单分散高效阳离子色谱柱填料。以10μm的单分散聚苯乙烯 二乙烯基苯(PSTDVB)微球为基球,对其表面季铵化,然后均匀附聚一层磺化的阳离子乳胶(0 2μm),即得到阳离子色谱固定相。分别用碱金属及碱土金属离子对用该填料制成的色谱柱的色谱性能进行了测试,结果表明该柱填料对常见阳离子具有很好的分离效果、良好的重现性和低的检测限。A new and simple method for the preparation of latexcoated pellicular cation exchanger is introduced. Chromatographic stationary phase of monodispersed agglomerated pellicular cation was prepared for the first time. The monodispersed polyvinylbenzenedivinylbenzene (PSTDVB) particles (10 μm) as substrate beads were functionalized with a tertiary amine on the surface at first and then attached with a layer of sulfonated latex particles (02 μm) to give the desired packing. Its chromatographic properties were evaluated by using alkali metals (Li+, Na+ , NH4+, K+) and alkaline earth metals (Mg2+, Ca2+). The results showed that the packing is of good resolution, low detection limit, and excellent repeatability for common inorganic cations.

关 键 词：阳离子 色谱柱 填料 色谱性能 阳离子色谱 固定相 单分散聚合物微球 分离 

分 类 号：O657.7[理学—分析化学] O65[理学—化学]